Having built a wooden Denver Observing Chair and finding it perfect except for one thing I had to try again. It is quite heavy and although I'm glad I made it tall to provide a back rest for sitting back and looking up at the sky, I wanted something that was a smaller, lighter grab for those "just a few minutes" I sneak in quite often. Not to mention it takes up less space in the trunk than the big one. I could have built another wooden one but the call of all that 1 1/2" alimuminum tubing beside the shop was begging to be used.